单词 | quartz |
释义 | quartz —quartzose /kwawrt"sohs/, quartzous /kwawrt"seuhs/, adj. /kwawrts/, n. one of the commonest minerals, silicon dioxide, SiO2, having many varieties that differ in color, luster, etc., and occurring either in masses (as agate, bloodstone, chalcedony, jasper, etc.) or in crystals (as rock crystal, amethyst, citrine, etc.): the chief constituent of sand and sandstone, and an important constituent of many other rocks. It is piezoelectric and used to control the frequencies of radio transmitters. [1750-60; < G Quarz] |
随便看 |
|
英语词典包含168451条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。